Scientists are considering the possibility of sending humans to Mars in the coming decades Although there have been successful manned missions to the Moon in the 1960s and 1970s Mars is 150 times further away from Earth than the Moon is Thus the projec

According to the reading passage, it is stated that although some successful missions to Moon have happened in the history, sending humans to Mars is still very challenging. The problems of traveling to Mars are due to its further distance from Earth, which the article clearly elaborates on them. However, the professor in the listening states why the assumptions mentioned in the reading passage were not correct and refutes them by describing three solutions for the problems as follows.
Firstly, the reading claims that since it take two years to go to Mars and come back, the cargo capacity to put on required resources such as food, water and oxygen for two years, will not be enough. The professor casts doubt on this point by saying that recently, researchers have found a technique called ''Hydroponics'' to solve this problem. She goes on to say that, it is a technique of growing plants in the water rather than in soil, which takes less space. Therefore, not only the crew they won't have the problem of food shortage but also by recycling the waste water of growing plants, they will be able to have drinking water. Furthermore, according to the photosynthesis process of plants, astronauts will get the amount of oxygen they need.
Secondly, the article posits that spending two years in the zero-gravity environment of space have hazardous effects on human body, like decreased muscle mass and lower bone density. In contrast, the professor says that most of the astronauts, who have experiences of staying months in space stations, know how to prevent these problems by using some methods. She states, for instance, regular exercise can hamper muscle mass decreasing.
Finally, the reading says that other problem of missions to Mars are exposure to perilous levels of space radiation, most of which are particles emitted by sun. The professor opposes this point by explaining that radiation levels are not dangerous all the time. According to the professor, special equipments can be installed to the spaceships in order to detect the increased radiation times and warn astronauts to stay in shielded area until the danger will pass.

Votes
Average: 8 (1 vote)
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Grammar and spelling errors:
Line 2, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...solutions for the problems as follows. Firstly, the reading claims that since i...
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Line 3, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ll get the amount of oxygen they need. Secondly, the article posits that spendi...
^^^^^
Line 4, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ise can hamper muscle mass decreasing. Finally, the reading says that other pro...
^^^^

Transition Words or Phrases used:
also, but, finally, first, firstly, furthermore, however, second, secondly, so, still, therefore, for instance, in contrast, such as

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 23.0 22.412803532 103% => OK
Preposition: 56.0 30.3222958057 185% => OK
Nominalization: 6.0 5.01324503311 120% => OK

Performance on vocabulary words:
No of characters: 1795.0 1373.03311258 131% => OK
No of words: 355.0 270.72406181 131% => OK
Chars per words: 5.05633802817 5.08290768461 99% => OK
Fourth root words length: 4.34067318298 4.04702891845 107% => OK
Word Length SD: 2.64705410924 2.5805825403 103% => OK
Unique words: 202.0 145.348785872 139% => OK
Unique words percentage: 0.569014084507 0.540411800872 105% => OK
syllable_count: 540.9 419.366225166 129% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 3.25607064018 154% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 5.0 2.5761589404 194% => OK

Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 25.0 21.2450331126 118% => OK
Sentence length SD: 38.3291331624 49.2860985944 78% => OK
Chars per sentence: 128.214285714 110.228320801 116% => OK
Words per sentence: 25.3571428571 21.698381199 117% => OK
Discourse Markers: 9.42857142857 7.06452816374 133% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.151877232627 0.272083759551 56% => OK
Sentence topic coherence: 0.0513760010085 0.0996497079465 52% => OK
Sentence topic coherence SD: 0.0695350673765 0.0662205650399 105% => OK
Paragraph topic coherence: 0.0918912114023 0.162205337803 57% => OK
Paragraph topic coherence SD: 0.0703644136059 0.0443174109184 159% => OK

Essay readability:
automated_readability_index: 15.1 13.3589403974 113% => OK
flesch_reading_ease: 54.56 53.8541721854 101% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 12.36 12.2367328918 101% => OK
dale_chall_readability_score: 9.32 8.42419426049 111% => OK
difficult_words: 100.0 63.6247240618 157% => OK
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 12.0 10.498013245 114% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?

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Write the essay in 20 minutes.

Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.